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Finding the Fourth Proportional to 42,547.80, 63,821.70 and 32,706.30

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Solution

The fourth proportional to 42,547.80, 63,821.70 and 32,706.30 is: 49,059.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,547.80 : 63,821.70 = 32,706.30 : x
  2. Step 2: Convert to fraction form
    42,547.80/63,821.70 = 32,706.30/x
  3. Step 3: Cross multiply
    42,547.80x = 63,821.70 × 32,706.30
  4. Step 4: Simplify right side
    42,547.80x = 2,087,371,666.71
  5. Step 5: Solve for x
    x = 2,087,371,666.71/42,547.80
  6. Step 6: Final answer
    x = 49,059.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.